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Unformatted text preview: Physics 1A- 9 AM class Quiz # 2 Oct. 24, 2008 Prof. Jose Onuchic MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Figure 1 A projectile is fired at time t = 0.0s, from point 0 at the edge of a cliff, with initial velocity components of n ox = 60 m/s and n oy = 100 m/s. The projectile rises, then falls into the sea at point P. The time of flight of the projectile is 23.0s. 1) In Figure 1, the height H of the cliff is closest to: A) 340 m B) 170 m C) 290 m D) 2590 m E) 2300 m 2) In Figure 1, the horizontal distance D is closest to: A) 2260 m B) 1760 m C) 2020 m D) 1600 m E) 1380 m 3) A jet airliner moving at 500 mph due east moves into a region where the wind is blowing at 120 mph in a direction 30 o north of east. What is the new velocity and direction of the aircraft? A) 607 mph, 5.67 o N of E B) 620 mph, 5.67 o N of E C) 607 mph, 6.22 o N of E D) 588 mph, 4.87 o N of E E) 588 mph, 6.22 o N of E 4) Two blocks of masses 20 kg and 8 kg are connected together by a light string and rest on a frictionless level...
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This note was uploaded on 10/13/2010 for the course PHYS physics 1a taught by Professor Jose during the Fall '10 term at San Diego.
- Fall '10